Owner’s Guide
and
Installation Instructions
Domestic Mains Pressure
Stainless Steel Electric Storage Water Heater
E80 to E315 Series
This water heater must be installed and serviced by a qualified person.
Please leave this guide with the householder.
Warning: Upon completion of the installation and commissioning of the
water heater, leave this guide with the householder or responsible officer.
DO NOT leave this guide inside the cover of the water heater, as it may
interfere with the safe operation of the water heater or ignite when the
water heater is turned on.
Patents
This water heater may be protected by one or more patents or registered
designs in the name of Aquamax Australia Pty Ltd.
®
Trademarks
Registered trademark of Aquamax Australia Pty Ltd.
TM
Trademark of Aquamax Australia Pty Ltd.
1
CONTENTS
Householder: Read the section “About Your Water Heater” (pages 3 to
15). The “Installation” section is intended for the installer but may be of
interest.
ABOUT YOUR WATER HEATER ................................................................ 3
Model Type................................................................................................ 3
Turning On the Water Heater .................................................................... 6
Shut Down Procedure ............................................................................... 6
Temperature Adjustment........................................................................... 6
Other Important Information ...................................................................... 7
Periodic Maintenance ................................................................................ 8
Water Chemistry...................................................................................... 11
Troubleshooting ...................................................................................... 12
INSTALLATION .......................................................................................... 15
Installation Overview ............................................................................... 15
Water Supplies ........................................................................................ 16
Plumbing & Plumbing Diagrams ............................................................. 17
Plumbing Connections......................................................................... 17
Two Temperature Zones Using a Temperature Limiting Device......... 20
Circulated Hot Water Flow & Return Systems .................................... 21
Circulated Flow & Return Plumbing Diagrams .................................... 22
Electrical & Electrical Connections.......................................................... 23
Thermostat Adjustment ....................................................................... 24
Commissioning ........................................................................................ 25
Draining the Water Heater ...................................................................... 26
Dimensions & Technical Data ................................................................. 27
WARRANTY ............................................................................................... 31
2
ABOUT YOUR WATER HEATER
Product Application
This water heater is designed for use in a single family domestic dwelling
for the purpose of heating potable water. Its use in an application other
than this may shorten its life.
Model Type
®
Aquamax electric storage water heaters are available with either a single
heating unit or with twin heating units (refer to “Single Element Model” and
“Twin Element Model” on page 4). The water heater can be installed in an
indoor or outdoor position and is not to be used as a pool heater.
Water is stored in a stainless steel cylinder and is heated by an electric
immersion heating unit (element). The thermostat controls water
temperature whilst automatic safety controls fitted to the water heater
provide safe and efficient operation.
Model Selection Chart
80 Litre
125 Litre
160 Litre
250 Litre
315 Litre
E80S18-SS
E80S24-SS
E80S36-SS
E125S18-SS
E125S24-SS
E125S36-SS
E125S48-SS
E160S18-SS
E160S24-SS
E160S36-SS
E160S48-SS
E160T24-SS
E160T36-SS
E160T48-SS
E250S24-SS
E250S36-SS
E250S48-SS
E250T36-SS
E250T48-SS
E315S36-SS
E315S48-SS
E315T36-SS
E315T48-SS
Legend
E
80,...315
S
T
18, 24, 36, 48
SS
Electric series
Rated hot water delivery in Litres
Single bottom element
Twin element *
Element wattage (1800W, 2400W, 3600W, 4800W)
Stainless Steel Cylinder
* Both elements are of the same wattage and are wired for non simultaneous
operation.
3
Single Element Model
This type of water heater has one heating unit with its own
thermostat. The heating unit is at the base of the water
heater and the unit can be connected to a continuous or
off-peak electricity supply. The thermostat is adjustable
between 60 ~ 75°C with a factory setting of 65°C.
•
Continuous electricity supply
This type of connection is suited to where the storage
capacity is less than the normal daily usage.
•
Off-Peak electricity supply
This type of connection will only allow heating to occur
during set hours. A volume of water sufficient for the
day’s total use is heated and stored. This type of
heating will be more economical due to reduced tariffs
by the electricity authority.
Twin Element Model
This type of water heater has two heating units, each with its own
thermostat. One heating unit is at the base of the water heater and the
other near the top. The lower thermostat is adjustable between 60 ~ 75°C
(factory setting 70°C) whilst the top thermostat is fixed at 60°C.
• Bottom heating unit (main heating unit)
During normal operation this heating unit supplies all
the hot water.
•
Top heating unit (booster)
This heating unit only operates during periods of high
demand to provide an additional supply of heated
water.
•
Electrical connection
The two heating units are wired for non simultaneous
operation so that only one heating unit can operate at a
time. The bottom heating unit is usually connected to an
Off-Peak (overnight) or time controlled electricity supply
and the top heating unit to a continuous supply. Some
electricity suppliers allow both heating units to be
metered at the Off-Peak or controlled tariff.
Note: Power must be available to the top heating unit circuit at all times for
this water heater to operate as designed.
4
Mains Pressure Operation
This water heater is designed to operate at mains pressure by connecting
directly to the mains water supply. If the mains supply pressure in your area
exceeds that shown in “Mains Water Supply” on page 16, a pressure
limiting valve must be fitted. The supply pressure should be greater than
350 kPa for true mains pressure operation to be achieved.
Hot Water Temperature
This water heater features an adjustable thermostat which can be set to the
most suitable temperature for your hot water needs. Refer to “Temperature
Adjustment” on page 6.
To meet the requirements of the National Plumbing Standard and to inhibit
the growth of legionella bacteria, the temperature of the stored water must
not be below 60°C which is the minimum thermostat setting of the water
heater. This is also the top heating unit thermostat setting on a twin
element model (the top heating unit thermostat is non adjustable).
The maximum main heating unit thermostat setting is 75°C with a factory
setting of 70°C for twin element models, top element fixed at 60°C and a
factory setting of 65°C for all other single element models.
High Hot Water Temperature Increases the Risk of Scald Injury
Warning: This water heater can deliver water at temperatures which
can cause scalding. Always check the water temperature before use, such
as when entering a shower or filling a bath or basin, to ensure it is suitable
for the application and will not cause a scald injury. Aquamax recommends
monthly temperature checks to ensure the appropriate temperature is
maintained within the hot water heater.
Aquamax recommends, and it may also be required by regulations, that a
secondary device such as an approved temperature limiting device or antiscald water shut off valve be fitted into the hot water pipe work to the
bathroom(s) and ensuite(s) if persons living in the house require additional
safety protection from potential scalding. This will keep the hot water supply
temperature to the bathroom(s) and ensuite(s) below 50°C which will
reduce the risk of scald injury whilst still allowing hotter water (60°C+) to the
kitchen and laundry.
For new hot water installations, all sanitary outlet fixtures used primarily for
personal hygiene purpose must deliver hot water not exceeding 50°C. This
temperature limit is not mandatory for kitchen sinks and laundry tubs and
the preferable temperature setting for these outlets should be 60°C.
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To minimise scalding, especially for those people in high scald risk
categories i.e. young children, people with potentially incapacitating
medical conditions, elderly people etc, this water heater must be installed in
accordance with AS/NZS 3500.4.
This appliance is not intended for use by persons (including children) with
reduced physical, sensory or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision or instruction
concerning use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the
appliance.
For early childhood centres, primary and secondary schools, nursing
homes or similar facilities for young, aged, sick or disabled persons, please
consult your local health authority for the correct temperature setting.
Turning On the Water Heater
Warning: The water heater can only be switched on upon completion
of the installation by a qualified person.
To turn on the water heater:
1. Fully open the cold water isolation valve at the cold water inlet to the
water heater.
2. Switch on the circuit breaker or isolator marked “Hot Water” or “Water
Heater” at the switchboard.
Shut Down Procedure
If it is necessary to turn off the water heater:
1. Switch off the circuit breaker or isolator marked “Hot Water” or “Water
Heater” at the switchboard or switch off the water heater isolating
switch if one is installed.
2. Close the cold water isolation valve at the cold water inlet to the water
heater.
Temperature Adjustment
The thermostat automatically controls the electricity supply to the heating
unit so that a constant temperature is maintained within the storage
cylinder. The thermostat is fully automatic and power is only used when the
water in the storage cylinder requires heating. There is no need to switch
the water heater off when it is not in use, except when you are going away
for an extended period.
Warning: The thermostat and its protective over temperature cut out
are mounted inside the front cover(s) of the water heater. The removal of
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the front cover(s) will expose 240V wiring. Access covers must only be
removed by an electrician or qualified person.
Warning: Thermostat temperature adjustment must only be performed
by an electrician or qualified person.
Warning: Children should be supervised to ensure they do not interfere
with the water heater.
Other Important Information
Going Away?
If you plan to be away from home for one or two nights, we suggest you
leave the water heater switched on. However, if you plan to stay away
more than a few nights, conserve energy by switching the water heater off
at either the switchboard or isolating switch (if fitted).
Note: When switched back on, the water heater may take 2 ~ 6 hours to
reheat depending upon element and water heater size. If connected to an
off peak system, hot water may not be available until the following morning.
Safety
This water heater is supplied with a thermostat, an over temperature and
energy cut out, and a combination pressure temperature relief valve. These
devices must not be tampered with or removed. The water heater must not
be operated unless each of these devices are fitted and are in working
order.
The Aquamax warranty may not cover faults if relief valves or other safety
devices are tampered with or if the installation is not in accordance with
these instructions.
Warning: For continued safety of this water heater, it must be installed,
operated and maintained in accordance with the Owner’s Guide and
Installation Instructions. These instructions must be read in conjunction with
all other instructions affixed to the appliance.
How Long Will the Water Heater Last
The water heater is supported by a manufacturer’s warranty (refer to page
31). There are a number of factors that will affect the length of service the
water heater will provide. These include but are not limited to the water
chemistry, the water pressure, the water temperature (inlet and outlet) and
the water usage pattern.
7
Precautions
Where damage to property can occur in the event of the water heater
leaking, the water heater must be installed in a safe tray. Construction,
installation and draining of a safe tray must comply with AS/NZS 3500.4
and all local codes and regulatory authority requirements.
The water heater must be maintained in accordance with the Owner’s
Guide and Installation Instructions. Refer to “Periodic Maintenance” below.
If this water heater is to be used where an uninterrupted hot water supply is
necessary for your application or business, you should ensure that you
have back up redundancy within the hot water system design. This should
ensure the continuity of hot water supply in the event that this water heater
was to become inoperable for any reason. We recommend you seek advice
from your plumber or specifier about your needs and building back up
redundancy into your hot water supply system.
Periodic Maintenance
Minor Six Monthly Maintenance
It is recommended minor maintenance be performed every six months by
the dwelling occupant.
Warning: Exercise care when operating easing levers as water
discharged from the water heater may be of a very high temperature.
Minor maintenance actions:
1.
Operate easing lever on pressure temperature relief valve (refer to
“Pressure Temperature Relief Valve” on page 9).
2.
Operate easing lever on expansion control valve (if ECV fitted) (refer
to “Expansion Control Valve” on page 10).
3.
If an overflow tray is installed, check to ensure the overflow tray drain
pipe is not blocked.
Annual Service
It is recommended an annual service be conducted on the water heater.
Servicing must be performed by a qualified person. Phone Aquamax
Service or their nearest Accredited Service Agent.
Annual service actions:
1.
Inspect and flush temperature pressure relief valve.
2.
Inspect and flush expansion control valve (if ECV fitted).
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3.
Visually check the water heater for any potential problems.
4.
Inspect all plumbing and electrical connections.
Note: The water heater will need to be drained during this service and will
take some time to reheat the water after servicing has been completed.
Depending upon the power supply connection, hot water may not be
available until the next day.
Major Five (5) Year Service
It is recommended a major five (5) year service be conducted on the water
heater. Servicing must be performed by a qualified person. Phone
Aquamax Service or their nearest Accredited Service Agent.
Note: The five (5) year service and routine replacement of any
components, such as the relief valve(s), are not included in the Aquamax
warranty. A charge will be made for this work.
Major five (5) year service actions:
1. Replace pressure temperature relief valve.
2.
Inspect and flush expansion control valve (if ECV fitted) and replace
expansion control valve if required.
3.
Check electric heating unit for excessive calcium build up or corrosion
and replace heating unit if required.
4.
Visually check water heater for any potential problems.
5.
Inspect all plumbing and electrical connections.
Note: The water heater will need to be drained during this service and will
take some time to reheat the water after servicing has been completed.
Depending upon the power supply connection, hot water may not be
available until the next day.
Pressure Temperature Relief valve (PTR valve)
The PTR valve is near the top of the water heater and is essential for safe
water heater operation. It is possible for the PTR valve to release a little
water through the drain line during each heating period. This occurs as the
water is heated and expands by approximately 1/50 of its volume.
Continuous leakage of water from the PTR valve and its drain line may
indicate a problem with the water heater (refer to “Pressure Temperature
Relief valve running” on page 13).
Warning: Never block the outlet of the PTR valve
or its drain line for any reason.
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Operate the easing lever on the PTR valve once every
six months. It is very important you raise and lower
the lever gently.
Warning: Exercise care when operating easing lever as water
discharged from the water heater may be of a very high temperature.
Warning: Exercise care to avoid any splashing of water, as water
discharged from the drain line will be hot. Stand clear of the drain line’s
point of discharge when operating the valve’s lever.
Danger: Failure to perform this procedure may result in the water
heater storage cylinder failing.
If water does not flow freely from the drain line when the lever is lifted, then
the water heater must be checked. Phone Aquamax Service or their
nearest Accredited Service Agent to arrange for an inspection.
The pressure temperature relief valve should be replaced at intervals not
exceeding five (5) years, or more frequently in areas where there is a high
incidence of water deposits (refer to “Water Chemistry” on page 11).
Expansion Control Valve (ECV)
In many areas, including South Australia, Western Australia and scaling
water areas, an ECV is fitted to the cold water supply line to the water
heater (refer to the “Cold Water Supply Plumbing Arrangement” diagram on
page 17). The ECV may discharge a small quantity of water from its drain
line during the heating period instead of the PTR valve on the water heater.
Operate the easing lever on the expansion control valve once every six
months. It is very important that you raise and lower the lever gently.
The expansion control valve should be checked for performance or
replaced at intervals not exceeding five (5) years, or more frequently in
areas where there is a high incidence of water deposits (refer to “Water
Chemistry” on page 11).
Change of Water Supply
The changing or alternating from one water supply to another can have a
detrimental effect on the operation and/or life expectation of the water
heater storage cylinder, pressure temperature relief valve and heating unit.
Where there is a changeover from one water supply to another, e.g. a
rainwater tank supply, bore water supply, desalinated water supply, public
reticulated water supply or water brought in from another supply, then
water chemistry information should be sought from the supplier or it should
be tested to ensure the water supply meets the requirements given in these
guidelines for the Aquamax warranty to apply.
10
Water Chemistry
This water heater must be installed in accordance with this advice to
be covered by the Aquamax warranty.
This water heater is manufactured to suit the water conditions of most
public reticulated water supplies. However, there are some known water
chemistries which can have detrimental effects on the water heater and its
operation and/or life expectancy. If you are unsure of your water chemistry,
you may be able to obtain information from your local water supply
authority. This water heater should only be connected to a water supply
which complies with these guidelines for the Aquamax warranty to apply.
Total Dissolved Solids (TDS)
Some water analysis reports may state the conductivity of the water rather
than the level of total dissolved solids. Conductivity, measured in
microsiemens per centimetre (µS/cm), is directly proportional to the TDS
content of the water. TDS, in mg/Litre, is approximately 70% of the
conductivity in µS/cm.
The Aquamax warranty will not cover resultant faults to the storage cylinder
if this water heater is connected at anytime to a water supply where the
TDS content of the water exceeds 600 mg/Litre.
In locations where TDS approaches 600 mg/Litre, e.g. due to sediment, we
strongly recommend fitting an appropriate filter to ensure water entering or
in the water heater does not exceed this level at any time i.e. due to
sediment build up.
Water Chemistry Levels Affecting Warranty
The Aquamax warranty of this water heater will not cover resultant faults on
components including the storage cylinder where water stored in the
storage cylinder exceeds at any time any of the following levels:
Total dissolved solids
Total hardness
Chloride
Magnesium
pH
Calcium
Sodium
Iron
600 mg/Litre
200 mg/Litre
300 mg/Litre
10 mg/Litre
9.5 and not less than 6.5
20 mg/Litre
150 mg/Litre
1 mg/Litre
11
Scaling Water
Scaling water is water that contains levels of calcium carbonate (total
hardness in excess of 200 mg/Litre at any time when the water heater is
operating). Scaling water can block and prevent the pressure temperature
relief valve from operating resulting in damage to the water heater storage
cylinder and water heater components.
An ECV is mandatory in SA & WA and must be fitted in ALL areas with
scaling water to assist in preventing blockage of the pressure and
temperature relief valve.
Danger: Failure to install an expansion control valve where scaling
water conditions occur may result in the water heater storage cylinder
failing.
To avoid damage to the storage cylinder and water heater components,
Aquamax strongly recommend scaling water be treated before entering the
water heater by fitting appropriate water filters/conditioners etc. Refer to
your Local Water Authority for information on water in your area. A build up
of white sediment on hot water taps or shower roses can be indicative of
scaling water. Contact Aquamax if this condition is observed.
Note: Damage caused by scaling water can affect the Aquamax warranty.
(Refer to “Water Chemistry Levels Affecting Warranty” on page 11).
Spring, Dam, Bore & River Water Supplies
The Aquamax warranty of this water heater will not cover resultant faults on
components including the storage cylinder due to the effects of sludge
and/or sediment as a result of connection to a water supply from silted or
treated sources i.e. springs, dams, bores, rivers or towns supplied from a
bore.
Troubleshooting
Check the items below before making a service call. You will be charged
for attending to any condition or fault that is not related to the manufacture
or failure of a part. For warranty terms and conditions (refer to “Warranty”
on page 31).
Not Enough Hot Water (Or No Hot Water)
•
Is the water heaters electricity supply switched on?
Have your electrician check to ensure the water heater is switched on
and that there is electricity at the water heater.
12
Note: Check the electricity supply to which the water heater is
connected. If the water heater is connected to an Off-Peak or time
controlled electricity supply, heating hours will be restricted (refer to
“Off-Peak Electricity Supply” on page 4).
•
Twin element water heaters
A twin element non simultaneous model must have power available to
the top heating unit circuit at all times for the water heater to operate as
designed. Have your electrician check to ensure this is the case.
•
Are you using more hot water than you think?
Is one outlet (especially the shower) using more hot water than you
think? Very often the amount of hot water used is not realised,
particularly when showering. Carefully review the family’s hot water
usage. Have your plumber fit a flow control valve to each shower outlet
to reduce water usage.
•
Pressure temperature relief valve running?
Is the PTR valve discharging too much water? (Refer to “Pressure
Temperature Relief valve running” on page 13).
•
Is the thermostat setting correct?
Ensure the thermostat setting is appropriate. Have your electrician
check and adjust the thermostat upwards to gain additional hot water
capacity. Refer to “Temperature Adjustment” on page 6.
Warning: Hotter water increases the risk of scald injury.
Pressure Temperature Relief valve running
•
Normal Operation
It is normal and desirable for the PTR valve to allow a small quantity of
water to escape during the heating cycle, however there may be a
problem if the valve continuously dribbles more than a bucket full of
water in a normal 24 hour cycle.
Note: During the first 24 hours after installation the valve may discharge
more than a bucket full of water. This is normal however excess
discharge should only occur during the initial 24 hour heat up period.
•
Continuous dribble
Try gently raising the easing lever on the relief valve for a few seconds
(refer to “Pressure Temperature Relief Valve” on page 9). This may
dislodge a small particle of foreign matter and clear the fault. Release
the lever gently.
13
•
Steady flows for long period (often at night)
This may indicate the mains water pressure sometimes rises above the
designed pressure of the water heater. Ask your installing plumber to fit
a pressure limiting valve.
Warning: Never use reconditioned relief valves and never replace
the relief valve with one of a higher pressure rating.
• Heavy flows of hot water until the water heater is cold - then stops until
water reheats.
The water heater must be switched off at the isolating switch or
switchboard. Phone Aquamax Service or their nearest Accredited
Service Agent to arrange for an inspection.
Expansion Control Valve Running
If an expansion control valve is fitted in the cold water supply line to the
water heater, it may discharge a small quantity of water instead of the
water heaters pressure temperature relief valve. This has the benefit of
conserving energy as the discharged water is cooler (refer to the “Cold
Water Supply Plumbing Arrangement” diagram on page 17 for expansion
control valve location).
Higher Than Expected Electricity Bills
Check the following points if your electricity bill is higher than expected:
•
Is the relief valve running excessively?
Refer to “Pressure Temperature Relief valve running” above.
•
Is one outlet (especially the shower) using more hot water than you
think?
Refer to “Not Enough Hot Water” on page 12.
•
Is there a leaking hot water pipe, dripping hot water tap, etc?
Even a small leak will waste a surprising quantity of hot water and
electricity. Replace faulty tap washers and have your plumber rectify
any leaks.
•
Has there been an increase in hot water usage?
An increase in hot water usage will result in an increase in water heater
operation.
•
Has your water heating tariff rate been increased by your electricity
retailer since your previous bill?
14
The electricity tariff to which your water heater is connected will
determine the overall operating cost of the system. It is important you
are aware of this tariff, i.e. Off-Peak (overnight) or time controlled
supply, Extended Off-Peak (overnight and day) or Extended time
controlled supply, Domestic/Continuous. Contact your energy supplier
for information relating to your water heating tariff rate.
If you have checked all the previous troubleshooting points and still
believe you need assistance, phone Aquamax Service or their nearest
Accredited Service Agent.
INSTALLATION
Installation Overview
This water heater must be installed by a qualified person in accordance
with the Installation Instructions. The installation must comply with the
requirements of AS/NZS 3500.4, AS/NZS 3000, all local codes and
regulatory authority requirements.
All packaging materials must be removed from the water heater prior to its
installation. This includes the removal of the plastic bag and the cardboard
base of the carton from the underside of the water heater.
This water heater is not suitable for pool heating.
Hot Water Redundancy
If this water heater is to be used where an uninterrupted hot water supply is
necessary for the application or business, then there should be redundancy
within the hot water system design. This should ensure the continuity of hot
water supply in the event that this water heater was to become inoperable
for any reason. We recommend you provide advice to the system owner
about their needs and building backup redundancy into the hot water
supply system.
Water Heater Location
This water heater is suitable for either outdoor or indoor installation. The
water heater should be installed close to the most frequently used outlet
and its position chosen with safety and service in mind.
Sufficient and safe space for ease of service and access to heating unit,
thermostat and relief valve should be considered when locating the water
heater. The water heater must be installed upright in a vertical position and
must be accessible without the use of a ladder or scaffold. You must be
15
able to read the information on the rating plate. If adequate room is
unavailable, the water heater must be disconnected, drained and removed
to enable servicing.
For outdoor installation, the water heater shall be installed freestanding on
a level and stable concrete base 50mm thick.
For indoor installation or where property damage could occur, an overflow
tray and drain must be fitted in accordance with AS/NZS 3500.4. The drain
pipe from the tray should be periodically checked to ensure that it is not
blocked.
Do not install this water heater in a roof space as a mains pressure storage
water heater.
If the base of the water heater is higher than the lowest tap by 2.0m or
more, the tank may be subject to a negative pressure (partial vacuum)
which can cause damage to the water heaters storage cylinder. In this
instance, an approved vacuum break valve (RMC #AV50A or equivalent)
must be installed at the highest point in the hot water line. Contact
Aquamax to obtain a vacuum break valve and installation details.
Note: Damage to the storage cylinder caused by incorrect installation is not
covered by warranty.
Water Supplies
Mains Water Supply
Where the mains water supply pressure exceeds that shown in the table
below, an approved pressure limiting valve is required and should be fitted
after the stop cock and before the non return valve as shown in the “Cold
Water Supply Plumbing Arrangement” diagram on page 17.
E80, E125,
E160
Pressure temperature relief valve setting
1400 KPa
Expansion control valve (ECV) setting *
1200 kPa
With ECV
960 kPa
Max mains supply pressure
Without ECV
1120 kPa
* Expansion control valve not supplied with water heater.
Model
E250,
E315
1000 kPa
850 kPa
680 kPa
800 kPa
Tank Water Supply
If the water heater is supplied with water from a tank supply and a pressure
pump system is not installed, then the bottom of the supply tank must be at
least 1 m above the highest point of the hot water plumbing system,
16
including the water heater. Care must be taken to avoid air locks. The cold
water supply line to the water heater must be adequately sized and fitted
with an approved full flow gate valve or ball valve and non return valve.
Water Supply Chemistry
Bad water can have a detrimental effect on water heater operation,
components and life expectancy and may affect warranty. Refer to “Water
Chemistry” on page 11 for more information. Also refer to “Spring, Dam,
Bore & River Water Supplies” on page 12.
Plumbing & Plumbing Diagrams
Plumbing Connections
All pipe work must be cleared of foreign matter before connection and
purged before attempting to operate the water heater. Use thread sealing
tape or an approved thread sealant on all fittings (never use hemp).
Water Inlet & Outlet Connections
An approved isolation valve and non return valve must be installed in the
supply line to the water heater.
A pressure limiting valve and expansion control valve may also be required
(for PLV requirements refer to “Water Supplies” on page 16 and for ECV
requirements refer to “Expansion Control Valve” on page 18).
A disconnection union must always be provided at the cold water inlet and
hot water outlet of the water heater to allow for water heater disconnection.
17
Left & Right Hand Side Cold Water Connections – E80 ~ E315 Models
All Aquamax mains pressure electric water heaters are manufactured with
dual inlets. For E80 ~ E315 models, the cold supply can be connected to
either side of the water heater. A brass plug is supplied with the water
heater to plug off the unused cold water supply fitting. When installing the
brass plug, apply thread sealing tape or an approved thread sealant to plug
thread before installation.
Expansion Control Valve
In some areas, local regulations may make it mandatory to install an
expansion control valve (ECV) in the cold water line to the water heater.
Refer to “Scaling Water” on page 12.
The ECV must always be installed after the non return valve and be the last
valve installed prior to the water heater (refer to the “Cold Water Supply
Plumbing Arrangement” diagram on page 17). A copper drain line must be
fitted to the ECV (refer to “Relief Valve Drain(s)” below).
Pressure Temperature Relief valve (PTR valve)
The PTR valve must be fitted before the water heater is operated. Before
fitting the PTR valve, make sure the valve probe has not been bent. Seal
the valve thread with thread sealing tape (never use hemp) and ensure the
tape does protrude past the end of the thread.
For E80 ~ E315 models; screw the PTR valve clockwise into the opening
on the water heater marked “PTR” (refer to E80 ~ E315 Models diagram on
page 27) with the valve outlet pointing downwards.
Do not use a wrench on the PTR valve body – use a spanner on the
spanner flats. A copper drain line must be fitted to the PTR valve (refer to
“Relief Valve Drain(s)” below).
Relief Valve Drain(s)
DN15 copper drain lines must be fitted to the ECV and PTR valve (if one is
installed) to carry the discharge clear of the water heater. Connect the drain
lines to the valves using disconnection unions. The drain line from the valve
to the point of discharge should be as short as possible, have a continuous
fall all the way from the water heater to the discharge outlet and have no
tap, valves or other restrictions in the pipe work. A drain line from a relief
valve must comply with the requirements of AS/NZS 3500.4.
A drain line must be no longer than 9 metres with no more than three
bends greater than 45° before discharging at an outlet or air break. The
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maximum length of 9 metres for a drain line is reduced by 1 metre for each
additional bend required of greater than 45°, up to a maximum of three
additional bends. Where the distance to the point of final discharge
exceeds this length, the drain line can discharge into a tundish.
Subject to local regulatory authority approval, the drain lines from the ECV
and PTR valve from an individual water heater may be interconnected.
The outlet of a drain line must be in such a position that flow out of the pipe
can be easily seen, but arranged so discharge will not cause injury,
damage or nuisance. The termination point of a drain line must comply with
the requirements of AS/NZS 3500.4. Drain lines must not discharge into a
safe tray.
In locations where water pipes are prone to freezing, drain lines must be
insulated, must not exceed 300mm in length and are to discharge into a
tundish through an air gap of between 75mm and 150mm.
If a drain line discharges into a tundish, the drain line from the tundish must
be not less than DN20. The drain line from a tundish must meet the same
requirements as for a drain line from a relief valve.
Warning: As the function of the PTR valve on this water heater is to
discharge high temperature water under certain conditions, it is strongly
recommended the pipe work downstream of the relief valve be capable of
carrying water exceeding 93°C. Failure to observe this precaution may
result in damage to pipe work and property.
Safe Tray
Where damage to property can occur in the event of the water heater
leaking, the water heater must be installed in a safe tray. Construction,
installation and draining of a safe tray must comply with AS/NZS 3500.4
and all local codes and regulatory authority requirements. AS/NZS 3500.4
also has particular requirements when a safe tray must be installed.
Pipe sizes
To achieve true mains pressure operation, the cold water line to the water
heater should be the same size or larger than the hot water line from the
water heater.
Hot water system pipe work must be sized according to the individual
application by persons competent to do so. Reference to the technical
specifications of the water heater and local regulatory authority
requirements must be made.
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Pipe Work Insulation
To reduce heat loss, the cold water line to and the hot water line from the
water heater must be insulated in accordance with the requirements of
AS/NZS 3500.4. The insulation must be weatherproof and UV resistant if
exposed.
Saddling Pipe Work
To prevent damage to the storage cylinder when attaching pipe clips or
saddles to the water heater jacket, we recommend the use of self drilling
screws with a maximum length of 13mm. Should pre drilling be required,
extreme caution must be observed when penetrating the jacket of the water
heater. If the storage cylinder is damaged as a result of attaching pipe clips
or saddles to the jacket, any resultant faults will not be covered by the
Aquamax warranty.
Two Temperature Zones Using a Temperature Limiting Device
This water heater can deliver water at temperatures which can cause
scalding. It is necessary and we recommend that a temperature limiting
device be fitted between the water heater and the hot water outlets in any
ablution area such as a bathroom or ensuite, to reduce the risk of scalding.
The installing plumber may have a legal obligation to ensure the installation
of this water heater meets the delivery water temperature requirements of
AS/NZS 3500.4 so that scalding water temperatures are not delivered to a
bathroom, ensuite or other ablution area.
Where a temperature limiting device is installed adjacent to the water
heater, the cold water line to the temperature limiting device can be
branched off the cold water line either before or after the isolation valve,
pressure limiting valve and non return valve to the water heater. If the cold
supply branch to the TLD is connected downstream of the water heater
non-return valve then we recommend that copper pipe or suitable high
temperature plastic pipe be used. This pipe work may be subject to high
water temperature and high water pressure. If the cold supply branch to the
TLD is connected downstream of the water heater non-return valve then we
recommend that copper pipe or suitable high temperature plastic pipe be
used. This pipe work may be subject to high water temperature and high
water pressure. If an expansion control valve is required, it must always be
installed after the non return valve and be the last valve prior to the water
heater.
If a pressure limiting valve is installed on the cold water line to the water
heater and the cold water line to a temperature limiting device branches off
before this valve or from another cold water line in the premises, then a
pressure limiting valve of an equal pressure setting may be required prior to
the temperature limiting device. Refer to the plumbing diagram “Two
Temperature Zones Using a Temperature Limiting Device” on page 21.
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Circulated Hot Water Flow & Return Systems
For circulated hot water flow and return systems, a temperature limiting
device can only be installed on a dead leg which branches off the circulated
hot water flow and return pipe.
Warning: Installing a temperature limiting device in the circulated flow
and return pipe work, or circulating tempered water from a temperature
limiting device may cause water to be delivered to ablution areas at a
temperature exceeding the requirements of AS/NZS 3500.4.
A single or twin element electric water heater connected to an Off-Peak or
time controlled electricity supply should not normally be installed as part of
a circulated hot water flow and return system. The benefits of the Off-Peak
electricity supply will be significantly reduced and the hot water temperature
may not be maintained. If a circulated flow and return system is required, it
is necessary to install a secondary (booster) water heater which is
connected to the hot water flow and return line and supplied from the OffPeak electric water heater. For Continuous and Off-Peak circulated hot
water flow and return plumbing arrangements, refer to the “Circulated Flow
& Return Plumbing Diagrams” on page 23.
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Circulated Flow & Return Plumbing Diagrams
22
Electrical & Electrical Connections
Warning: The power supply to the water heater must not be switched
on until the water heater is filled with water and a satisfactory megger
reading is obtained.
All electrical work must be carried out by a qualified person in accordance
with AS/NZS 3000, AS/NZS 3008 and any local authority requirements.
E80 ~ E315 models
The water heater must be directly connected to a dedicated 240 V AC,
50Hz mains power supply with over current protection and an isolating
switch installed at the switchboard. The power supply wires, insulation
temperature rating and current carrying capacity must be suitable for this
application.
The power supply to a twin element model should be Off-Peak (overnight)
to the bottom heating unit and continuous to the top heating unit. The
power supply to a single element model can be either an Off-Peak
(overnight), Extended Off-Peak (overnight and day) or continuous electricity
supply, depending upon the size of the water heater. Check with the local
electricity supply authority as to their requirements. An Off-Peak (overnight)
power supply will provide the maximum financial savings. Discuss the
power supply requirements with the householder.
Connect the power supply wires directly to the water heaters terminal block
and earth tab connection as shown in the wiring diagram provided on the
rear of the lower electrical access cover. Ensure there are no excess wire
loops inside the front cover.
Note: The active wire from the continuous supply must be connected to the
top heating unit circuit and the active wire from the Off-Peak or time
controlled supply must be connected to the bottom heating unit circuit.
A 20mm flexible conduit is required to protect the wiring to the water
heater. The conduit is to be connected to the water heater with an
approved 20mm flexible conduit terminator.
Note: Remove yellow warning label from conduit entry before connecting
conduit and wiring.
Wiring Diagram
Refer to wiring diagram located behind water heater access cover.
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Thermostat Adjustment
Warning: The thermostat and its protective over temperature cut out
are mounted inside the front cover(s) of the water heater. The removal of
the front cover(s) will expose 240V wiring. Access covers must only be
removed by an electrician or qualified person.
Warning: Thermostat temperature adjustment must only be performed
by an electrician or qualified person.
The main (bottom) thermostat has been factory preset to 70°C for twin
element models and 65°C for all other single element models. It is possible
to adjust this thermostat (60 ~ 75°C) but is recommended that the main
thermostat’s maximum setting does not exceed 70°C.
The boost (top) thermostat is set to 60°C and is non adjustable.
To adjust the main thermostat:
Warning: The thermostat must only be adjusted when power to the
water heater is isolated.
1.
Switch off electrical supply to the water heater.
This can be performed at the switchboard or
water heaters isolating switch if one is installed.
2.
Remove lower access cover.
3.
Turn thermostat temperature adjustment dial
clockwise to increase temperature setting or
anticlockwise to decrease temperature setting.
4.
Replace lower access cover.
5.
Switch on electrical supply to water heater.
Warning: The power supply to the water heater must not be switched
on until the water heater is filled with water and a satisfactory megger
reading is obtained.
Over Temperature & Energy Cut Out
The operation of the over temperature and energy cut out on the
thermostat indicates a possibly dangerous situation. If the over temperature
and energy cut out operates, it must not be reset and the water heater must
be serviced by a qualified person.
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Commissioning
After installation and before commissioning the water heater the following
pre commissioning procedure must be performed:
1.
Check to ensure that all wiring links and electrical connections are
secure and tight.
2.
To ensure the over temperature and energy cut out is set, press and
release the black reset button on the thermostat(s) (refer to diagram in
“Thermostat Adjustment” on page 24).
3.
Perform a megger (insulation) test on the water heater. If a satisfactory
megger reading is obtained the water heater can be filled and turned
on.
To Fill & Turn ON the Water Heater
Warning: The power supply to the water heater must not be switched
on until the water heater is filled with water and a satisfactory megger
reading is obtained.
1.
Open all hot water taps in premises including shower(s).
2.
Fully open cold water isolation valve on cold water line to water heater.
This will purge air from hot water plumbing lines via the taps opened in
step 1.
3.
Close each hot water tap after all air is purged (when air is purged
water will run freely without air bubbles or spluttering).
4.
Check all plumbing connections for leaks.
5.
Switch on electrical supply to water heater and switch on water heater
isolating switch (if one is installed).
Explain to the householder, or a responsible officer, the functions and
operation of the water heater.
Leave this guide with the householder or responsible officer upon
completion of the installation and after commissioning.
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To Turn OFF the Water Heater
Sometimes it is necessary to turn off the water heater after installation and
commissioning. This may be required on a building site or where the
premises are vacant.
To turn off the water heater:
1.
Switch off electrical supply to the water heater. This can be performed
at the switchboard or water heaters isolating switch if one is installed.
2.
Close cold water isolation valve on cold water line to water heater.
Draining the Water Heater
Warning: Water discharged from the water heater during this
procedure may be of a very high temperature. Wear personal protective
equipment (PPE) to reduce the risk of scalding.
To drain the water heater:
1.
Switch off electrical supply to water heater. This can be performed at
the water heaters isolating switch if one is installed.
2.
Close cold water isolation valve on cold water line to water heater.
3.
Close all hot water taps in premises.
4.
Operate PTR valve lever for a period of five (5) seconds to release
pressure in water heater. Note: Operate lever gently and do not let
lever snap back or you will damage relief valve seat.
5.
Undo union at cold water inlet to water heater and attach a hose to
water heater side of union. Run other end of hose to a drain.
6.
Operate PTR valve lever until all water has drained from water heater.
Operating PTR valve lever will let air into the water heater which will
allow water to drain through hose.
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Dimensions & Technical Data
E80 ~ E315 Models
E80 ~ E315 Models
Model
E80
E125
E160
E250
E315
Hot Water Delivery (L)
80
125
160
250
315
Weight Empty (kg)
25
30
40
45
55
A (mm)
695
1105
1425
1220
1540
B (mm)
185
185
185
230
230
C (mm)
120
110
110
145
145
D (mm)
487
487
487
620
620
H (mm)
875
1285
1605
1430
1750
V (mm)
580
580
580
710
710
O (mm)
885
1295
1615
1440
1760
Dimensions
Max supply Pressure
With ECV (kPa)
960
960
960
680
680
Without ECV (kPa)
1120
1120
1120
800
800
ECV setting (kPa)
1200
1200
1200
850
850
PTR Valve (kPa)
1400
1400
1400
1000
1000
Technical data is subject to change.
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WARRANTY
AQUAMAX ELECTRIC DOMESTIC MAINS
PRESSURE WATER STORAGE HEATER
WARRANTY
– AUSTRALIA ONLY1. THE AQUAMAX WARRANTY - GENERAL
1.1 This warranty is given by Aquamax Australia Pty Limited,
ABN 37 138 189 689 of 463-467 Warrigal Road, Moorabbin Victoria.
1.2 Aquamax offer a trained and qualified service network who will repair
or replace components at the address of the water heater subject to
the terms of the Aquamax warranty. Aquamax Service, in addition can
provide preventative maintenance and advice on the operation of your
water heater. The Aquamax Service contact number is available 7
days a week on 1800 676 000 from 9am to 5pm, excluding public
holidays (hours subject to change without notification).
1.3 For details about this warranty, you can contact us on 1800 676 000 or
by email at service@aquamax.com.au (not for service bookings).
1.4 The terms of this warranty is set out in section 2 and apply to water
heaters manufactured after 1st September 2012.
1.5 If a subsequent version of this warranty is published, the terms of that
warranty will apply to water heaters manufactured after the date
specified in the subsequent version.
2. TERMS OF AQUAMAX WARRANTY AND EXCLUSIONS TO IT
2.1 The decision of whether to repair or replace a faulty component is at
Aquamax’s sole discretion.
2.2 If you require a call out and we find that the fault is not covered by
Aquamax warranty, you are responsible for our standard call out
charge. If you wish to have the relevant component repaired or
replaced by Aquamax, that service will be at your cost.
2.3 Where a failed component or cylinder is replaced under this warranty,
the balance of the original warranty period will remain effective. The
replacement does not carry a new Aquamax warranty.
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2.4 Where the water heater is installed outside the boundaries of a
metropolitan area as defined by Aquamax or further than 25 km from
either a regional Aquamax branch office or an Accredited Aquamax
Service Agent’s office, the cost of transport, insurance and travelling
between the nearest branch office or Aquamax Accredited Service
Agent’s office and the installed site shall be the owner’s responsibility.
2.5 Where the water heater is installed in a position that does not allow
safe or ready access, the cost of that access, including the cost of
additional material handling and/or safety equipment, shall be the
owner’s responsibility. In other words, the cost of dismantling or
removing cupboards, doors or walls and the cost of any special
equipment to bring the water heater to floor or ground level or to a
serviceable position is not covered by this warranty.
2.6 This warranty only applies to the original and genuine Aquamax water
heater in its original installed location and any genuine Aquamax
replacement parts.
2.7 The Aquamax warranty does not cover faults that are a result of:
a. Accidental damage to the water heater or any component (for
example: (i) Acts of God such as floods, storms, fires, lightning
strikes and the like; and (ii) third party acts or omissions).
b. Misuse or abnormal use of the water heater.
c.
Installation not in accordance with the Owner’s Guide and
Installation Instructions or with relevant statutory and local
requirements in the State or Territory in which the water heater
is installed.
d. Connection at any time to a water supply that does not comply
with the water supply guidelines as outlined in the Owner’s
Guide and Installation Instructions.
e. Repairs, attempts to repair or modifications to the water heater
by a person other than Aquamax Service or an Aquamax
Accredited Service Agent.
f.
Faulty plumbing or faulty power supply.
g. Failure to maintain the water heater in accordance with the
Owner’s Guide and Installation Instructions.
h. Transport damage.
i.
Fair wear and tear from adverse conditions (for example,
corrosion)
j.
Cosmetic defects.
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2.8 Subject to any statutory provisions to the contrary, this warranty
excludes any and all claims for damage to furniture, carpet, walls,
foundations or any other consequential loss either directly or indirectly
due to leakage from the water heater, or due to leakage from fittings
and/or pipe work of metal, plastic or other materials caused by water
temperature, workmanship or other modes of failure.
2.9 If the water heater is not sized to supply the hot water demand in
accordance with the guidelines in the Aquamax water heater literature,
any resultant fault will not be covered by Aquamax warranty.
3. WHAT IS COVERED BY AQUAMAX WARRANTY FOR THE WATER
HEATERS DETAILED IN THIS DOCUMENT
3.1 Aquamax will repair or replace a faulty component of your water
heater if it fails to operate in accordance with its specifications as
follows:
What components
are covered
All components
The cylinder
(if the water heater is
installed in a singlefamily domestic
dwelling)
The cylinder
(if the water heater is
not installed in a
single-family domestic
dwelling)
The period in
which the fault
must appear in
order to be
covered
What coverage you receive
Year 1
Repair and/or replacement of
the faulty component, free of
charge, including labour.
Year 2 to 10
Replacement cylinder, free of
charge. Installation and repair
labour costs are the
responsibility of the owner.
Year 1
Repair and/or replacement of
the faulty component, free of
charge, including labour.
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4. ENTITLEMENT TO CLAIM UNDER THIS WARRANTY
4.1 To be entitled to make a claim under this warranty, you need to:
a.
Be the owner of the water heater or have consent of the owner
to act on their behalf.
b.
Contact Aquamax Service without undue delay after detection
of the defect and, in any event, within the applicable warranty
period.
4.2 You are not entitled to make a claim under this warranty if your water
heater:
a. Does not have its original serial numbers or rating label.
b. Is not installed in Australia.
5. HOW TO MAKE CLAIM UNDER THIS WARRANTY
5.1 If you wish to make a claim under this warranty, you need to:
a.
Contact Aquamax on 1800 676 000 and provide owner’s
details, address of the water heater, a contact number and
date of installation of the water heater or if that’s unavailable,
the date of manufacture and serial number (from the rating
label on the water heater).
b.
Aquamax will arrange for the water heater to be tested and
assessed on-site.
c.
If Aquamax determines that you have a valid warranty claim,
Aquamax will repair or replace the water heater in accordance
with this warranty.
5.2 Any expenses incurred in the making of a claim under this warranty
will be borne by you.
6. THE AUSTRALIAN CONSUMER LAW
6.1 Our goods come with guarantees that cannot be excluded under the
Australian Consumer Law. You are entitled to a replacement or refund
for a major failure and for compensation for any other reasonably
foreseeable loss or damage. You are also entitled to have the goods
repaired or replaced if the goods fail to be of acceptable quality and the
failure does not amount to a major failure.
6.2 The Aquamax’s warranty (set out above) is in addition to any rights
and remedies that you may have under the Australian Consumer Law.
34
INSTALLER INFORMATION
DEAR INSTALLER,
Please provide the following information upon completion of the installation.
This information should be provided to Aquamax to assist the customer in
the event that a claim is made under the Aquamax warranty.
Plumber (Name & Company):
Plumber’s licence number:
Compliance Certificate:
(if applicable in your state)
Installation date:
Model & serial number:
Water Heater date of manufacture:
AQUAMAX AUSTRALIA PTY. LTD
ABN 37 138 189 689
www.aquamax.com.au
FOR SERVICE TELEPHONE
1800 676 000
NOTE: Every care has been taken to ensure accuracy in preparation of
this publication. No liability can be accepted for any consequences, which
may arise as a result of its application.
Revision Date: 01/09/2012
AQ0901055-B
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